Motor



29, 1935- c. CHRISTIAN El AL 2,065,514

' MOTOR Filed Aug. 6, 1934 3 Sheets-Sheet 1 ATTORNEY Dec. 29, 1936. I c s A r AL 2,065,514-

MOTOR Filed Aug. 6, 1934 ,s Sheets-Sheet? [2 IL 1 a k 6 I B 1-0 I J [a 33 T- 'w w Q Q I f m 9 47 l Lp I 37 7 Glaydadkrpstpaw ATTORNEY c. CHRISTIAN ET AL- MOTOR Filed Aug. 6, 1934 3 Sheets-Sheet 3 M. 0 a a u a .6 0

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Zorj/nMGhr ATTORNEY Patented Dec. 29, 1936 UNITED STATES PATENT OFFICE MOTOR Application August 6, 1934, Serial No. 738,710

1 Claims.

This invention relates to engines and has for its object the provision of a motor which will start easily in all weathers; which may be driven by air, steam or gasoline; and which will operate safely and with high efliciency. The invention is illustrated in the accompanying drawings and consists in certain novel features which will be hereinafter first fully described and then particularly defined in the appended claim.

In the drawings:

Figure l is an enlarged View of one end of the apparatus, partly in plan and partly in section.

Figure 2 is a transverse section on the line 2--2 of Figure 1.

Figure 3 is a section on the line 33 of Figure 1.

Figure 4 is a section on the line 4-4 of Figure 1.

Figure 5 is a detail section through the structure for admitting fluid pressure to the rotor.

Figure 6 is a section on the line 6-6 of Figure 5.

Figure 7 is a detail plan view taken on the line 1-1 of Figure 2.

Figure 8 is a detail section on the line 8-8 of Figure 'l.

The frame or casing of the engine includes a cylindrical body I, the lower half of which is preferably integral with legs 2 having feet which may be firmly bolted to the floor of the engine room or to another support. The hood 3, which constitutes the upper portion of the body, is secured upon the lower portion by bolts inserted through mating flanges on the two sections as will be understood. At one end, which, for convenience, will be called the front end, the body presents a tapered or conical extension 4, the inner walls of which will deflect or direct any overflow oil toward the machine to collect in the well defined by the lower portion of the body. A filling nozzle 5 is mounted on one side of the body near the front end to permit the feeding of lubricating oil to the well, and a pet cock 6 is mounted in the front end of the body at the level desired for the oil. The pet cock is open when oil is being poured into the body, and when the oil reaches the desired level it will begin to trickle through the pet cock whereupon the cock is closed and the pouring of oil is stopped.

Between the ends of the casing, a large bearing ring 1 is secured in the body, it being noted, upon reference to Figure 3, that a supporting base 8 is in the body below the ring. It will also be noted that the body is shouldered or recessed at 9 and the ring 1 is provided with fins H] which rest on said shoulders, a cap or cover I I being disposed over the ring and provided with terminal lugs l2 resting on said fins. Cap screws IS, inserted through said terminal lugs into the base, 5 secure the parts in place. A track ring I4 is disposed. within and close to the ring I and is held against relative axial movement by anti-friction balls l5 fitted in annular grooves in the opposed faces of the rings. The shoulders 9 obviously 10 drop the axis of the rings below the axis of the casing so that the rotor it, having its axis on the axis of the casing, is eccentric to the track. The rotor has radial cylinders l1 formed therein and is constructed with a central axial opening I 8 communicating with the inner ends of the cylinders through ports E9. The opening l8 receives the rear end portion of a fluid-pressure supply pipe 20 which extends forwardly on the horizontal axis of the casing and is provided at and near its front extremity with flanges 21 through which cap screws are inserted into the end wall of the casing to secure the pipe in place. The rear extremity of the supply pipe 29 is closed but has a radial port 22 therein which is disposed at an angle to the vertical and will register at times with the port [9 in the upper cylinder, as will be understood upon reference to Figures 1, 3, 5 and 6. The ports register preferably when the cylinder has passed ten degrees past the upper dead center, and at all other times the ports 19 are closed by a sealing ring 23 fitted around the end of the pipe 20 in an annular groove therein, as shown in Figures 3 and 9. The sealing ring is a split spring ring having an opening 24 to fit around the mouth of the port 22 and thickened or enlarged, as at 25, on its inner side around the opening. A chamber 26 is formed around the port, packing 27 being disposed in said chamber against the enlargement 25, and an expan- 40 sion spring 2' in the chamber acts upon a presser block 28 to compress the packing against the enlargement and around the wall of the port so that leakage of the pressure fluid will be avoided. The maximum external diameter of the sealing ring 23 is slightly greater than the internal diameter of the opening It in the rotor so that it must be compressed to be inserted in the opening for which purpose it is longitudinally split at 29. After it is inserted, its resiliency causes it to expand and fit closely in the opening so as to positively and effectually seal the ports I9. At its rear closed end, the pipe 20 is formed with a central axial trunnion 30 fitted within an antifriction bearing 3! in the rear end of the opening l8 whereby the rotor is adapted to rotate about the pipe.

Within each cylinder I7 is a piston 32 which is adapted to slide outwardly under the influence of pressure fluid admitted through the inner end of the cylinder, and each piston is equipped with piston rings in the well-known manner to prevent leakage around the piston. From each piston, a piston rod. 33 extends through the outer open end of the cylinder, and the outer end of the piston rod is secured to an axle 34 and upon said axle, at its ends, are mounted rollers 35 which are adapted to run upon the track ring I4. Mounted upon and carried by the axle is a crosshead 36, and secured to the crosshead, at opposite sides of the axle, are rods 31 which slidably engage in passages provided therefor in the rotor parallel with and at opposite sides of the cylinders, as shown in Figure 3. Expansion springs 38 are fitted in the passages between the inner ends of the rods and hold them outwardly to the track ring while permitting them to readily move inwardly and yield to the eccentricity of the track. As shown in Figure 7, the crosshead is a substantially rectangular plate having a sleeve 39 at each corner, the axis of the sleeve being parallel with the side of the rotor. Secured upon the side of the rotor, in axial alignment with the corresponding sleeves, are blocks 40 in which are secured guide rods 4| which have their outer ends engaged in the sleeves 39 which may slide on the rods as the pistons move in and out.

It will now be understood that when pressure fluid is admitted to a cylinder l T, the piston therein will be driven outwardly and will bear against the track ring so that the rotor will be caused to rotate clockwise as viewed in Figures 2 and 3, and it may be noted that the rotor is heavy so that it serves as a flywheel to aid the action by its acquired momentum and maintain a steady even motion in the engine.

Exhaust ports 42 are formed in the rotor and lead rearwardly from the sides of the respective cylinders. Secured to the rear side of the rotor is a plate 43 which is fixed to or formed integral with the front end of a shaft 44 which is journaled in and extends rearwardly beyond an antifriction bearing 45 secured upon the rear end portion of the main frame. The plate is pro- Vided with passages 46 leading from the exhaust ports 42 to the axial bore 41 in the front end of the shaft 44 and radial ports 48 provide outlets from said bore.

Centrally on the front side of the rotor about the supply pipe 20 is a flange 59 which is held in place by the chambered end of a sleeve or outer hollow shaft 60 which is secured to the rotor and extends forwardly to a bearing El supported in the casing near its front end, the front end of the shaft being reduced and rotatably fitted through the bearing. A'packing 62 and gland 63 are disposed within the chamber of the shaft 60 and are held close about the pipe 20 by the spring 64 so that leakage of oil to the ports l9 and 22 will be prevented, and a port 65 is formed radially in the shaft to permit the oil to seep to the bore of the shaft and lubricate the opposed surfaces of the shaft and the pipe.

Having described the invention, we claim:

In an engine, a circular track, a rotor mounted within and eccentric to the track, radial cylinders in the rotor, pistons in the cylinders, crossheads connected with the pistons and mounted to run on the track, guide rods secured on the side of the rotor and having sliding engagement with the crossheads, alined rods extending from the crossheads and fitting slidably within the rotor, expansion springs within the rotor between the inner opposed ends of the rods, and means for supplying fluid pressure to the pistons to drive the same.

CLAUDE CHRISTIAN. LORIN M. CHRISTIAN. 

